Evidence and Missing Information Worksheet

Critical thinking lesson 9: Enough evidence and missing information · Set 32 · 40 questions

Thinking tip (Enough facts, then decide): Not enough evidence: “One mango was sour, so all are sour.” Enough: “We checked all 40 mangoes; every one was ripe.” Before you answer, check every fact you need is given. 7 rows with 9 in each → 7 × 9 = 63. “A box has 9 in each row” with no number of rows → not enough info. Missing facts hide in words like “and a bag”, “older” (by how much?) and “a long film” (how long?).

1. 1.📊 Which gives the best evidence about the class’s favourite game? (a) guessing (b) asking your pet (c) asking one friend (d) asking the whole class
2. 2.🧩 Enough evidence or not? “We checked all 40 mangoes in the box; every one was ripe.” (a) not enough evidence (b) enough evidence
3. 3.📝 What does “evidence” mean? (a) a rumour (b) a guess (c) a loud opinion (d) facts that support it
4. 4.🧩 Enough evidence or not? “It rained on my birthday once, so it always rains on birthdays.” (a) not enough evidence (b) enough evidence
5. 5.🧩 Diya is 12 years old. Rohan is older than Diya. How old is Rohan? (a) 14 (b) 13 (c) not enough info (d) 17
6. 6.🧩 A box of laddoos has 5 in each row. How many laddoos are in the box? (a) 10 (b) 5 (c) 50 (d) not enough info
7. 7.🧩 Meera bought 6 mangoes for ₹240 in all. Each mango cost the same. What did one mango cost? (a) ₹40 (b) not enough info (c) ₹45 (d) ₹240
8. 8.🧩 Tara is 9 years old. Arjun is 8 years older than Tara. How old is Arjun? (a) 17 (b) 18 (c) 8 (d) not enough info
9. 9.🧩 A box of guavas has 6 in each row. How many guavas are in the box? (a) 6 (b) 60 (c) not enough info (d) 12
10. 10.🧩 Enough evidence or not? “We measured the plant every day for a month; it grew 9 cm.” (a) enough evidence (b) not enough evidence
11. 11.True or false: “We tested 20 seeds, and 18 of them sprouted.” gives enough evidence. (a) False (b) True
12. 12.🧩 A box has 3 rows of apples, with 6 in each row. How many apples are in the box? (a) 24 (b) 18 (c) not enough info (d) 9
13. 13.🧩 Enough evidence or not? “A dog barked at me once, so all dogs are mean.” (a) not enough evidence (b) enough evidence
14. 14.🧩 A box has 3 rows of mangoes, with 5 in each row. How many mangoes are in the box? (a) 8 (b) not enough info (c) 20 (d) 15
15. 15.True or false: “It rained on my birthday once, so it always rains on birthdays.” gives enough evidence. (a) False (b) True
16. 16.🧩 The film starts at 4 PM. It is a long film. When does it end? (a) 6 PM (b) 7 PM (c) not enough info (d) 5 PM
17. 17.🧩 Enough evidence or not? “One student said the canteen food was cold, so it is always cold.” (a) enough evidence (b) not enough evidence
18. 18.🧩 Diya bought 6 balls and a lunch box for ₹370 in all. Each ball cost the same. What did one ball cost? (a) ₹61 (b) ₹364 (c) not enough info (d) ₹370
19. 19.🐕 One dog barked at you. What is the fair conclusion? (a) never see dogs (b) dogs hate you (c) all dogs are mean (d) that one dog barked
20. 20.True or false: “It rained on my birthday once, so it always rains on birthdays.” does not give enough evidence. (a) False (b) True
21. 21.🧩 Ananya bought 4 mangoes and a cap for ₹180 in all. Each mango cost the same. What did one mango cost? (a) ₹176 (b) ₹45 (c) not enough info (d) ₹180
22. 22.🧩 A box of mangoes has 5 in each row. How many mangoes are in the box? (a) 50 (b) 5 (c) not enough info (d) 10
23. 23.True or false: “We measured the plant every day for a month; it grew 9 cm.” does not give enough evidence. (a) False (b) True
24. 24.True or false: “We tried the new route for 10 days, and it was faster every day.” does not give enough evidence. (a) True (b) False
25. 25.🧩 A box of eggs has 7 in each row. How many eggs are in the box? (a) 7 (b) 70 (c) not enough info (d) 14
26. 26.🥭 You taste one mango from a box of 50, and it is sweet. Can you be sure all 50 are sweet? (a) yes, mangoes match (b) yes, it is certain (c) no mango is sweet (d) no, check more
27. 27.True or false: “We asked all 30 classmates; 25 chose the zoo trip.” gives enough evidence. (a) False (b) True
28. 28.🧩 Ananya is 7 years old. Arjun is older than Ananya. How old is Arjun? (a) 12 (b) 9 (c) 8 (d) not enough info
29. 29.🧩 The film starts at 2 PM. It is a long film. When does it end? (a) 5 PM (b) 3 PM (c) not enough info (d) 4 PM
30. 30.True or false: “We tried the new route for 10 days, and it was faster every day.” gives enough evidence. (a) True (b) False
31. 31.🧩 Enough evidence or not? “My friend didn’t like the book, so the book is bad for everyone.” (a) not enough evidence (b) enough evidence
32. 32.True or false: “One mango in the box was sour, so all the mangoes are sour.” gives enough evidence. (a) False (b) True
33. 33.🧩 Ishaan bought 6 balls for ₹240 in all. Each ball cost the same. What did one ball cost? (a) ₹240 (b) not enough info (c) ₹45 (d) ₹40
34. 34.🧩 Enough evidence or not? “We asked all 30 classmates; 25 chose the zoo trip.” (a) enough evidence (b) not enough evidence
35. 35.🧩 Enough evidence or not? “One mango in the box was sour, so all the mangoes are sour.” (a) not enough evidence (b) enough evidence
36. 36.🧩 The film starts at 5 PM and lasts 1 hour. When does it end? (a) 5 PM (b) 7 PM (c) 6 PM (d) not enough info
37. 37.🧩 The film starts at 3 PM. It is a long film. When does it end? (a) not enough info (b) 6 PM (c) 5 PM (d) 4 PM
38. 38.🧩 The film starts at 6 PM and lasts 2 hours. When does it end? (a) 8 PM (b) 6 PM (c) 9 PM (d) not enough info
39. 39.🧩 Kabir is 8 years old. Diya is older than Kabir. How old is Diya? (a) 9 (b) 10 (c) 13 (d) not enough info
40. 40.True or false: “We checked all 40 mangoes in the box; every one was ripe.” does not give enough evidence. (a) False (b) True

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